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EP1052079B1 - Procédé et dispositif de fabrication d'un élément profilé creux en matière thermoplastique - Google Patents

Procédé et dispositif de fabrication d'un élément profilé creux en matière thermoplastique Download PDF

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Publication number
EP1052079B1
EP1052079B1 EP00108492A EP00108492A EP1052079B1 EP 1052079 B1 EP1052079 B1 EP 1052079B1 EP 00108492 A EP00108492 A EP 00108492A EP 00108492 A EP00108492 A EP 00108492A EP 1052079 B1 EP1052079 B1 EP 1052079B1
Authority
EP
European Patent Office
Prior art keywords
profile
tool
calibration
partial
hollow chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00108492A
Other languages
German (de)
English (en)
Other versions
EP1052079A1 (fr
Inventor
Erwin Brunnhofer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technoform Caprano and Brunnhofer GmbH and Co KG
Original Assignee
Technoform Caprano and Brunnhofer GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Technoform Caprano and Brunnhofer GmbH and Co KG filed Critical Technoform Caprano and Brunnhofer GmbH and Co KG
Publication of EP1052079A1 publication Critical patent/EP1052079A1/fr
Application granted granted Critical
Publication of EP1052079B1 publication Critical patent/EP1052079B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/256—Exchangeable extruder parts
    • B29C48/2566—Die parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb

Definitions

  • the invention relates on the one hand to a method for producing a constant length over its cross-section hollow profile made of thermoplastic material by the cooling nozzle method, wherein a melt of the plastic extruded through a heated profile tool zone and immediately thereafter under pressing pressure by a cooled calibration zone with internal and external cooling of the hollow chamber profile and on the other hand an apparatus for carrying out such a method, comprising a heatable profile tool and a coolable calibration tool with a coolable hollow mandrel arrangement, the profile tool and the calibration tool are combined with the interposition of an insulating layer to a closed system with propagating melt pressure.
  • the invention is based on the technical problem of producing complicated hollow chamber profiles with high accuracy at high speed.
  • the invention solves this problem in procedural terms, characterized in that the plastic melt in the form of independent open part profiles, which are arranged according to their position in the hollow section and between associated part of the bar ends still missing web parts, exiting the profile tool zone and the missing web portions in the calibration plastic melt flowing in under the pressing pressure is supplemented, as well as being cohesively connected with the associated part-bar ends from the melt heat.
  • At least the plastic melt located in the region of the partial web ends will be kept warm over an initial part length of the calibration zone, in order to ensure the cohesive connection or welding of the part web ends with the plastic melt that has run off under all circumstances.
  • the invention is based on the recognition that the problems can be circumvented by the extrusion rate by the hollow chamber profile incomplete in open part profiles in the profile tool zone is generated and these sub-profiles only in the calibration zone by Pressing pressure nachf jobde plastic melt are added to the hollow chamber profile.
  • the subject of the invention is also a device of the method described.
  • the solution to the underlying problem is that the profile tool has on its side facing the calibration tool end face spaced from each outlet of Operafilkanälen and merge the sub-profile channels in the calibration in a guided to the end of the calibration hollow chamber profile channel. Since in the device according to the invention the profile tool has only partial profile channels for open part profiles, the hollow chamber mandrel arrangement is present only in the calibration tool.
  • the arrangement is preferably made so; that branches at least one supply channel for the plastic melt in the profile tool in the sub-profile channels, but of course each sub-profile channel can be supplied by a separate feed channel of the profile tool.
  • each sub-profile channel can be supplied by a separate feed channel of the profile tool.
  • the device shown in the figures is used to produce a constant over its length cross-section hollow chamber profile made of thermoplastic material after the cooling nozzle method.
  • the device consists of a heatable profile tool 1 and a coolable calibration 2 with a coolable hollow chamber mandrel assembly 3.
  • the profile tool 1 and the calibration 2 are interposition of an insulating layer 4, which also could consist of a thin layer of air, united to a not shown in detail closed system with propagating melt pressure.
  • the profile tool 1 is provided on its side facing away from the calibration tool 2 with supply channels 5 for the thermoplasticized plastic melt, which are branched into partial profile channels 6 for open part profiles. As shown in FIG. 3, these sub-profile channels 6 open at a distance from one another in the outlets 7 in the end face 8 facing the calibration tool. From the outlets 7, therefore, open, independent sub-profiles emerge; These are arranged according to their position in the finished hollow chamber profile and have between associated part web ends 9 still missing web parts 10.
  • the sub-profile channels 6 merge into a hollow-chamber profile channel 11 guided up to the end of the calibration tool 2 (cf., FIGS. 5, 7).
  • the still missing web parts 10 are supplemented by plastic melt flowing under the pressing pressure, as well as being cohesively connected or welded out of the melt heat with the associated part web ends 9.
  • FIG. 5 shows how a mandrel holding device 14 is designed for the coolable hollow chamber mandrel arrangement 3.
  • the mandrel holding device 14 with the hollow chamber mandrel assembly 3, which consists of two spines 15, 16, is made in one piece with the calibration tool 2; multi-part design would also be possible.
  • the bores 17 for the coolant for cooling the mandrels 15, 16 are merely indicated.
  • the method described for the production of hollow profiles made of thermoplastic material initially comprises the usual in cooling nozzles process control in which the melt pressure, which is present both in the nozzle and in the calibration, is kept constant by control operations - either the extruder or the trigger.
  • said production method is also suitable for processing propellant-containing melts and thereby to use the pressure regulation typical of the cooling nozzle method and / or to adjust the foam density by the ratio of extruder rpm (mass output) and take-off speed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Claims (8)

  1. Procédé de fabrication du type par filières d'extrusion, d'un profilé à compartiment creux en matière thermoplastique, présentant une section transversale constante sur sa longueur, dans lequel une masse fondue de matière plastique est extrudée au travers d'une zone chauffée d'un outil de profilage (1) et directement à la suite, encore sous la pression de compression, au travers d'une zone de calibrage (2) refroidie, avec refroidissement intérieur et extérieur du profilé à compartiment creux, caractérisé en ce que la masse fondue de matière plastique sort de la zone de l'outil de profilage (1) en forme de profilés partiels ouverts indépendamment les uns des autres, disposés en fonction de leur position dans le profilé à compartiment creux et présentent, entre des extrémités de traverses partielles (9) associées, des parties de traverses (10) encore manquantes, et en ce que les parties de traverses encore manquantes sont complétées dans la zone de calibrage (2) par la fusion de matière plastique, qui continue à s'écouler sous la pression de compression, et sont encore assemblées par alliance de matière, à partir de la chaleur de fusion, avec les extrémités de traverses associées.
  2. Procédé suivant la revendication 1, caractérisé en ce qu'au moins la masse fondue de matière plastique située dans la zone des extrémités de traverses partielles est maintenue en température sur une longueur partielle initiale de la zone de calibrage.
  3. Procédé suivant l'une des revendications 1 et 2, caractérisé en ce que le refroidissement intérieur du profilé à compartiment creux n'est placé que dans la zone de calibrage.
  4. Dispositif pour la mise en oeuvre du procédé suivant l'une des revendications 1 à 3, comprenant un outil de profilage (1) pouvant être chauffé et un outil de calibrage (2) pouvant être refroidi avec un agencement de poinçons à compartiment creux pouvant être refroidi, dispositif dans lequel l'outil de profilage et l'outil de calibrage sont réunis en un système fermé, avec intercalation d'une couche isolante (4), avec une pression de masse en fusion qui se propage, caractérisé en ce que l'outil de profilage (1) comporte, sur son côté frontal tourné vers l'outil de calibrage (2), des sorties (7) disposées à distance mutuelle de canaux de profilage partiels (6) et les canaux de profilage partiels (6) se prolongent, dans l'outil de calibrage (2), par un canal de profilage de compartiment creux (11) guidé jusqu'à l'extrémité de l'outil de calibrage (2).
  5. Dispositif suivant la revendication 4, caractérisé en ce qu'au moins un canal d'alimentation (5) pour la masse en fusion de matière plastique est ramifié dans l'outil de profilage (1) en canaux de profilage partiels (6).
  6. Dispositif suivant l'une des revendications 4 et 5, caractérisé en ce que, à côté des extrémités des canaux de profilage partiels (6), des taquets conducteurs de chaleur (12), en liaison thermique avec l'outil de profilage (1), pénètrent dans les canaux de profilage partiels (6) de l'outil de calibrage (2).
  7. Dispositif suivant la revendication 6, caractérisé en ce que des taquets conducteurs de chaleur (12), mutuellement associés, sont respectivement agencés sur un insert conducteur de chaleur (13) mis en place dans l'outil de profilage (1).
  8. Dispositif suivant la revendication 7, caractérisé en ce que les deux taquets conducteurs de chaleur (12) des inserts (13) reçoivent entre eux un agencement de porte-poinçons (14).
EP00108492A 1999-05-08 2000-04-19 Procédé et dispositif de fabrication d'un élément profilé creux en matière thermoplastique Expired - Lifetime EP1052079B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19921458A DE19921458B4 (de) 1999-05-08 1999-05-08 Verfahren und Vorrichtung zum Herstellen eines Hohlkammerprofils aus thermoplastischem Kunststoff nach dem Kühldüsenverfahren
DE19921458 1999-05-08

Publications (2)

Publication Number Publication Date
EP1052079A1 EP1052079A1 (fr) 2000-11-15
EP1052079B1 true EP1052079B1 (fr) 2007-06-13

Family

ID=7907553

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00108492A Expired - Lifetime EP1052079B1 (fr) 1999-05-08 2000-04-19 Procédé et dispositif de fabrication d'un élément profilé creux en matière thermoplastique

Country Status (10)

Country Link
US (1) US6582643B1 (fr)
EP (1) EP1052079B1 (fr)
JP (1) JP3662169B2 (fr)
AR (1) AR018720A1 (fr)
AT (1) ATE364488T1 (fr)
BR (1) BR0002083B1 (fr)
CA (1) CA2307732C (fr)
DE (2) DE19921458B4 (fr)
ES (1) ES2284436T3 (fr)
PL (1) PL193278B1 (fr)

Families Citing this family (14)

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US6722873B2 (en) * 2001-09-10 2004-04-20 Recot, Inc. Apparatus for producing a curly puff extrudate
US7053421B2 (en) 2003-12-15 2006-05-30 Lighthouse Technology Co., Ltd Light-emitting diode
DE102004010461A1 (de) * 2004-03-01 2005-09-29 Oechsler Ag Verfahren zum Herstellen von Strangformen aus kunststoffgebundenen Fasserwerkstoffen, Vorrichtungen zum Ausüben der Verfahren und Werkstoffe zur Verwendung bei den Verfahren
US20080295451A1 (en) * 2004-08-04 2008-12-04 Erwin Brunnhofer Blank for Spacer for Insulating Window Unit, Spacer for Insulating Window Unit, Insulating Window Unit and Method For Manufacturing a Spacer
DE102006059854B4 (de) 2006-12-15 2010-04-01 Technoform Caprano Und Brunnhofer Gmbh & Co. Kg Armiertes Kunststoffprofil für Fenster-, Türen- und Fassadenelemente
DE102006061035C5 (de) * 2006-12-22 2014-09-04 Technoform Bautec Holding Gmbh Kunststoffprofil für Fenster-, Türen- und Fassadenelemente
US20110023393A1 (en) * 2009-07-31 2011-02-03 Steven Hartman Cornice
US20110318094A1 (en) 2010-06-29 2011-12-29 Vincent Hensley Strut for connecting frames
EP2436501B1 (fr) 2010-10-04 2014-04-02 Helmut Hiendl Procédé et dispositif de fabrication d'un produit en plastique extrudé
CN105936117B (zh) * 2016-06-12 2019-03-19 东莞市华立实业股份有限公司 一种tpu与pvc共挤成型防撞条挤出模具
CN106827448B (zh) * 2017-03-21 2023-05-26 四川业勃利亨桂骄明威管业有限公司 一种钢塑复合缠绕管带材挤塑模具
US11142942B2 (en) 2017-05-31 2021-10-12 Technoform Bautec Holding Gmbh Profile for window, door, facade and cladding elements
AU2018276403A1 (en) 2017-05-31 2019-12-19 Technoform Bautec Holding Gmbh Profile for window, door, facade and cladding elements
EP4434717A1 (fr) * 2023-03-24 2024-09-25 Technoform Bautec Holding GmbH Dispositif de calibrage et procédé de calibrage d'un profilé extrudé en matière plastique

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Also Published As

Publication number Publication date
PL193278B1 (pl) 2007-01-31
EP1052079A1 (fr) 2000-11-15
CA2307732C (fr) 2007-08-07
DE19921458B4 (de) 2009-12-24
BR0002083B1 (pt) 2010-06-01
AR018720A1 (es) 2001-11-28
JP2000326386A (ja) 2000-11-28
DE50014399D1 (de) 2007-07-26
PL340027A1 (en) 2000-11-20
JP3662169B2 (ja) 2005-06-22
CA2307732A1 (fr) 2000-11-08
BR0002083A (pt) 2001-03-13
ES2284436T3 (es) 2007-11-16
DE19921458A1 (de) 2000-11-09
US6582643B1 (en) 2003-06-24
ATE364488T1 (de) 2007-07-15

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